Setting The Type Of Signals And The Number Of Steps; Setting The Numeric Values Of The Test - Metrix CX 1651 Manuel De L'utilisateur

Calibrateur multifonctions CX 1651

Setting the type of signals and the number of steps

Type of output signal can be set using OUTPUT display button. Press the button repeatedly to select the signal
which will be generated at the output terminals after the test program is executed. The following options are
available:
VDC – VAC – ADC – AAC – WDC – WAC – R – C – T RTD – T TC – F PWM – F HF
Selected type of output signal is displayed in the header of the programming table, "Output" column. The values
in the table change when the type of the output signal is changed.
Type of measured signal (input) can be set using INPUT display button. Press the button repeatedly to select
the signal which will be measured at the input terminals by the built-in multimeter after the test program is
executed. The following options are available:
V DC – mA DC – mV DC – R 4W – Freq – T TC – T RTD
Explanation of symbols:
V DC DC voltage measurement in 12 V range
mA DC DC current measurement in 25 mA range
mV DC DC voltage measurement in 20 mV to 2 V range(automatic range switching)
R 4W four-wire measurement of resistance
Freq measurement of frequency up to 15 kHz
T TC measurement of temperature using thermocouple
T RTD measurement of temperature using resistance temperature sensor
If T TC or T RTD functions are used, the parameters set for the multimeter mode apply. The settings include the
type of unit of measurement (K – °C), temperature scale (ITS68 – PTS90), sensor type, temperature of cold
junction of thermocouple (RJ) and resistance at 0 °C.
Selected type of input signal is displayed in the header of the programming table, "Input" column. The values in
the table change when the type of the input signal is changed.
Number of test steps can be set by pressing STEPS display button in the range 1 to 10. Set number of steps is
displayed in the header of the programming table, "Steps" column. The number of the rows in the table changes
when the number of steps is changed. You can select the lines in the table by pressing ∨, ∧ buttons or by turning
the knob of the potentiometer.

Setting the numeric values of the test

After the type of output signal is selected, numeric values of individual steps can be set. The following
parameters can be set for each step:
5. Value of OUTPUT signal. The range valid for the respective output signal can be used.
If DC voltage or DC current are programmed, only the voltage or current can be set, not the frequency. The
calibrator uses the frequency which has been previously set for the respective output function.
If PWM or HF frequency output is selected, only the frequency can be set. The calibrator uses the output
voltage and duty cycle which has been previously set for the respective output function.
If power output (W AC, W DC) is selected, only W can be selected. The calibrator uses constant voltage,
power factor (phase) and frequency which have been previously set in power generation mode. Change of
power set in the programming table is achieved by change of output current during the test.
6. Lower tolerance limit of input value (LOW). The limit can be set within the selected range of the multimeter.
7. Upper tolerance limit of input value (HIGH). The limit can be set within the selected range of the
multimeter.
8. Duration of each program step in seconds (TIME). Setting range is 0.5 to 100 s.
Programming of values is done as follows:
140 Manuel de l'utilisateur